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Exercise

Exercise. 1. A chemical bond formed by two atom sharing a pair of electrons is called a/an …. bond. A. Ionic B. Polar C. Covalent D. Non polar E. Coordinate covalent.

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Exercise

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  1. Exercise

  2. 1. A chemical bond formed by two atom sharing a pair of electrons is called a/an …. bond.A. IonicB. PolarC. CovalentD. Non polarE. Coordinate covalent

  3. 2. Lithium and chloride react o form LiCl, an ionic compound. The chloride ion has …. Electrons in its outermost occupied shell. • 2 • 6 • 7 • 8 • 18

  4. 3. Which one of the following violates the octet rule? • PCl3 • CCl4 • NF3 • OF2 • PCl5

  5. 4. The element of A forms compound AF3 (F = Fluorin) which follows octet law. The statement which wrong about that compound is …. • A – F has a polar bond • Element of A has 5 valence electrons • Element of A has 1 lone pair of electron • Molecule of AF3 has characteristic of polar • Element of A has 5 bond pairs of electron

  6. 5. Known the electro negativity element H, F, Cl, Br and I continuously 2.1; 4; 3.0; 2.8 and 2.5. the compound which very polar is …. • HF • HCl • HBr • HI • BrF

  7. 6. Element of X (Z = 5) forms the compound with element of Y (Z = 17) with the formula XY3. The quantity of the lone pair in center atom on the compound of XY3 is …. • 0 • 2 • 3 • 4 • 5

  8. 7. The following compound group that including ionic bond is . . . • NaCl • CO • Na • HF • HO

  9. 8. The following compound group that including covalent bond is . . . • NaCl • MgS • CO • Fe • Na

  10. 9. The following compound group that including metalic bond is . . . • KBr • NaCl • CO • Na • HO

  11. 10. Noble gases are stable because . . . • Total electrons in the shells have been fully occupied • Losing 1 electron • capturing 1 electron • Losing and capturing 1 electron • Losing or capturing 1 electron

  12. 11. Ionic bond is . . . • Bond created due to the present of electrons transfer • Chemical bonding involving sharing pair of electrons • Characteristic elements • Chemical bond in which the shared pair of electrons is provided by only one of the bonded atoms

  13. 12. Covalent bond is . . . • Bond created due to the present of electrons transfer • Chemical bonding involving sharing pair of electrons • Characteristic elements • Chemical bond in which the shared pair of electrons is provided by only one of the bonded atoms

  14. 13. Bond formation process can be described with . . . • Electron configuration • Ionic bond • Covalent bond • Metalic bond • Lewis symbol

  15. 14. When configuration is 2 8 8 1 is owned, an atom can be stable by way of . . . • Losing 1 electron • Capturing 1 electron • Capturing 7 electron • Losing or capturing 1 electron • Netral

  16. 15. When configuration is 2 8 8 7 is owned, an atom can be stable by way of . . . • Losing 1 electron • Capturing 1 electron • Capturing 7 electron • Losing or capturing 1 electron • Netral

  17. 16. Helium has . . . electrons on the atomic shell • 1 • 2 • 3 • 4 • 5

  18. 17. The bonding pair of e¯ (BP) of H₂S is . . • 1 • 2 • 3 • 4 • 5

  19. 18. The unbonding pair of e¯ (LP) of PH₃ is . . . • 1 • 2 • 3 • 4 • 5

  20. 19. Mg and N react to form Mg3N2, an ionic compound. Mg2+ has ----- electrons on its highest occupied energy level. • 8 • 2 • 10 • 4 • 5

  21. 20. The number of unshared pairs of electrons in the outer shell of oxygen in Cl2O is -----. • One • Two • Three • Four • zero

  22. 21. Which one of the following contains both ionic and covalent bonding? • LiF • KNO3 • MgO • CaCl2 • Li3N

  23. 22. Which one of the following molecules contains a triple bond? • BCl3 • NH3 • H2CO3 • C2H2 • HOF

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